Blinkist - Key insights from 6,000+ bestselling books and podcasts
Upcase by thoughtbot - An online learning platform for developers - now free
Four Minute Books - Making you smarter in 4 minutes or less.
PracticeLinux - Learn Linux, Vim, Git, Tmux, Gpg and more
12min APP - Free reading app for summaries of nonfiction books.
Enbitious - An online business learning marketplace that helps all ambitious entrepreneurs to learn & network.